Folding box.



FULDEHG MPLIOATIOE rum MA UMTED STATES PATENT onirica.

FREDERCK DENBHS, CHCAGO, 'Il'.'INOIS.

semanas non..

l Specification of Letters Patent.

Patented Dec. 29, 1908.

Appucaaonmea nach 9, 190s. serial No. 419,836.

combinations `ci parts hereinafter described A and then pointed out in the appended claims. In the acoempanyine drawing 1n which like' reference Vnumeras indicate similar parts in the several figures, Figure 1 is a" plan vien of the form of theblank used in construct-ing .a box embodying my linven- -tiomFig 42 isa plan view of the completed box. Without the "cover showing it in 'its folded or collapsed. position with certain parte indicated in dotted fines; Fig.` 3 is a E view( of the box `Without its cover showingthe box in its partially erected form Fig.- 411s a perspective-view illustrating the box in its-.erected raum-with arts broken away; Fig.

v5 .is a detail view s owing the manner 1n which the sides and ends of the box interpk .and 6 is a detail sectional view with the cover position.-

ln the resent embodiment oi my invention the ox is substantially rectangular,

though iti-s to be understood that the formthereof may he changed Without vdeparting from the scope .of my invention, .and is adapted to be constructedfrom a single blank of paper o'r other suitable .flexible material. The blank illustrated in Fig..1 comprises a bottom 10 and sides andends 11 and 12,-

respectively, the ends having ears 13 and 14 v the side, and thel corresponding X whose ends are substantially diagonal or cut-back. and are rovided with laps- 1 5 and 16, the lapter aving slits 1,7 and the former hooked slits of each side extending 'from the bottom at an inclination, toward the central line of slits on opposite sides being substantial 21 von its inner face, Tof slightly lespslengt tongues 18. The sides areA -provided with diagonal slitsl .19 and 20, the

y parallel- .and lying in the sameplane when the box is erected. Each .end :is provided with a str1 thatits ends are free to stand away from the inner face of the end. Each side is preferably provided with a strip 22 on its inner face and of substantially the same length. as the side. The strips 2l and 22 are preferably formed Aby providing the sides and ends with extensions which maybe turned .inwardly upon the inner faces Voi' the sides and ends, and in practice i prefer to cut or slit these extensions, as on the. lines 23, to

forni Wings 24.

'The blank is divided by suitable scores into the Ihottorrnsides, and ends, and along the lower ed es of the Wings 24 and the inner ends of t e ears 13 and 14, as indicated by dotted lines, in order to expedite the folding and mfolding of the parts. In initially erecting the blank vinto box-like form, the sides and 'ends are brought'to vertical position with the ears 1.3 :and .'14 outside y.of the ksides 11, and thelaps 15 :and .16 are lpassed inwardly through their slits 19 and 20 respectively and interlocked on the inside of the box by their" slits 17 land hooks 18, all as shomi in Fig.' 4.. The length of the strips 21 being. slightly less than that of the ends 1-2, the ends of the strips forni recesses or pockets 25 in which the-upper portionsof the ends of the sides rest, so that the sides are held -troni folding orcollapsing inwardly; the depth'of v the pockets Will vary more or less according to the Width of the strips 21, and as the ends of these strips preferably .are free from the ends 1.2 they'may incline more or less away fronithe `endsin order toincrease the Width o fdthepockets and, the hooking eect on the s1 es. l The box .having been erected f as clearly illustrated in Fig. 4, in order to change it to its collapsed form as shownin Fig. 2, as for shipping or storage purposes, the sides 11 are Withdrawn fronn thegrecesses 25 and deressed inwardly, thef'lockingi-flaps-l and 16 liending at theirA line of union with the ears 13 and 15 which are drawn down by the sides to which they are secured by the flapsand folded under the ends along their scores at their line of union with the ends 12, and the ends are dravm down by the ears and rest upon them when they are folded doitn. The Wings'24of the box i'n itscoliapsed condition are .straightened utand -lie iat as shown in 4dotted lines in Fig. 2 which also shows in 10 .dotted lines the relative positions of the ears 13 and 14.

. In order to restore the box'to-its open or erected form for use the sides are pulled upwardly, as by strings 26 secured thereto in any suitable manner until they are vertical, the sides bearing against the ends and ears to' raise the former to vertical position also, the ends of the sides slipping readily and automatically into th'e recesses 2.5.

Because oi the fie'xibleness of the paper or other materialvof which the box may be conbeing secui ed to the ends 12 presents a s'ub-4 structed the l parts readily assume their erected or collapsed positions, and the interlocking-fiaps 15. and 16 by reason of their Width and the manner in which they are locked together reinforce the sides giving them greater rigidity. The ends of the sides snap into the pockets so that the sides are automatically locked in vertical position by the mei-e operation of drawingthem up andare held from falling inwardlyhwhile the box is in use; the middle portion df the strips 21 stantially -flush surface and does ,not interfere with the unfolding of the sides, While the ends of those strips being free fromith'e ends 12 may s ring out more loiless behind p'r inside of t e sides to more secnrely lock the parte in place. The sidesv thus automaticl ally interlock With'the endsl,` andtlics'e parts are held from collapsing. The trips 21 and 22 serve to'add rigidity to the si es and ends,v

and the wings 24 being bent to horizontal position when the cover 27. is applied lact as braces for the same purpose. The string 26 will ol' course be tied' over the cover thus drawing the sides apait and aidingin keeping the box in erected form.

While I have used the terms sides and ends as referring to the parts of an ordinary vbox, it is o1 course understood that these parts may be-of thesame or different sizes according as the box is square or rectangular, and the term ends v 1s mei-ely coni-- ventional and would yof course designate any vof the Wallsofa box; the pockets may of.

course be made in either the side or end Walls.

I Clllm-j- 1. A folding box made from a sing`e blank providing a bottom, side and .end Walls adapted to be lfolded down upon the bottom, the

end Walls having ockets into which the side Walls automatical y enter when the Walls are raised to erected position. A

2. A fol-din boxmade from a single blank providing' a bottom, side and end walls adapted to be folded down upon theV bottom, strips on the iii-ner .faces of the end Walls and providing pockets |into which the side Walls automatically enter when the Wallsare raised to erect position.

3. A folding box made from a single blank providing a bottom, side andi. end Walls adapted to be folded down upon the bottom,

strips secured tothe ends intermediate their' lengths and disconnected at their ends to forni pockets into Which the sides automatically enter when the Walls are raised to erect position.

4. A folding box made from a single'blankproviding a bottom, side and end Walls upon the bottom, ears on'one pair of walls connected to the other pair of Walls interme diate their ends, and strips on said first pair of Walls forming end-pockets for the other pair which automatically enter the pockets las the Walls are raised to erect position.

6. In a folding box, a bottom, side and end Walls integral with the bottom and adapted to be folded down upon the bottom, ears'fconv necting the side and end walls and being, disconnected from the side Walls adjacent. the end Walls, and strips secured at their centers on the end Walls and forming'end-pocketsfor the side Walls Whichvautomatically enter the pockets as the Walls are raised to erect position. i

' 7. ln afolding box, a bottom, side and end Walls flexibly secured to the bottom. and adapted to be folded down upon the bottom, ears fiexibly secured to the end `Walls and connecting the side Walls at points 'intermediate the length thereof, and flexible strips secured at their centers on the end Walls and forming end-pockets into Which the side Walls are adapted to automatically enter as the Walls are raised to erect position.

8. -In a folding box-.comprising a bottom, V

side and end walls integral with the bottom and adapted to be folded down upon the bottom, ears connectingthe side and end Walls,

-strips secured at theircenters on the end Walls and forming end-pockets for .the side Wallsyvhich automatically enter thepockets When the vvalls are raised to erect position, a cover, and Wings on the side and end Walls adapted to brace the same and support the cover. 4

In testimony whereof l aflix my signature in presencefof two- Witnesses.v v K FREDERICK J. DENNIS.

-rWitnesses;f C.` GL. McRoBERTs,

IELiziairrH Mormon 

